532 



LIST OF IRISH TES TACEA, 



$. fluviatilis. 



4i. littoralis. 



5. glabrissi- 

 nius. 



base to the apex^ being fully half an inch 

 longer than any speeimen hitherto found on 

 the British coasts, 



Montagu, Test. Br. p. 470. — Donovan, Br. Sh. 

 t. 16. f. 2. In a stream at Clonooney; in 

 the Shannon and Bresna ; and in some places 

 of the Canal, adhering to stones. 



Linn. Trans, viii. p. 226. t. 5. f. 15. Common 

 on most shores. 



Plate xxiv. fig. 12. N. with a pellucid, and al- 

 most globular shell, of a bluish-white colour, 

 with four volutions, covered with rather wide 

 striae, which crosses the whorls obliquely : 

 the whorls are pretty deeply divided, and 

 somewhat inflated : the spire does not rise 

 much above the body of the shell : aperture 

 sub-lunated : umbilicus long and narrow, co- 

 vered with fine regular longitudinal striae : 

 lip very thin, and slightly reflected on the 

 base of the shell. Size of the shell one-eighth 

 of an inch. Found by Dr Turton in Dublin 

 Bay. 



HALIOTIS. 



1. tubercu- Donovan, Br. Sh. t. 5. — Montagu, Test. Br. 

 lata. p. 473. One specimen was got by the dredge 



at Springfield, by Mr Templeton of Belfast, 

 who assures me several specimens have been 

 picked up on the shores of Down, particularly 

 in the neighbourhood of Springfield. 



PATELLA. 



1. vulgata. Donovan^ Br. Sh. t. 14.— Montagu, Test. Br, 

 p. 475. Common on all rocky shores. 



